% a8 s, }/ D" s9 k' V# q) |[ 本帖最後由 sjhor 於 2009-3-17 06:38 PM 編輯 ]作者: wuwen 時間: 2007-10-30 02:13 PM 標題: On chip 10 Ohm Resistor Before we look for trimming, let us review the following: % P/ i/ r1 u8 A, Y$ r9 f1. What is the technology used here 2 v, C, M+ w' d" @6 Q, B! K) ^2. What type of resistors you have B# p8 ^7 Y& A
3. What is the sheet resistance/ area . D2 J K) A( y( p- ]; S4. What are the fluctuation of these resistances over corners and temperature , K! N5 h# ?5 e |4 I) G! F' `! i5. How much area you have 9 G) Q5 x- H6 i2 D+ ]+ H7 B 3 Q+ |3 W$ w2 f+ L: s3 tNot quite sure one would have a pragmatic solution here. . r! `& H; q* K/ N: h! J6 i$ Q( @( F3 R, g! }+ u
Hopefully these help.作者: stanley547 時間: 2011-6-29 11:54 PM
感謝大大分享 努力學習中作者: staric 時間: 2011-7-2 12:10 AM
好难呀。。。。。。。。。。。。。作者: AIC6632 時間: 2015-10-30 09:16 PM
這要TRIM到這個精準度 * j/ K* q; k z$ z( n+ ?2 A/ u還真的很難耶